Last updated: 2025-10-11

182 Backend Software Engineering jobs in Seattle.

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CertiK

CertiK’s security offerings include security consulting, security reviews, security auditing of smart contracts and blockchains, verification of smart contract…

Security Engineer

Seattle

  • Skills: Solidity, Ethereum Virtual Machine (EVM), cybersecurity, security auditing, smart contracts, penetration testing, security consulting, threat modeling, hacking, blockchain security
  • Level: mid
  • Type: full_time

Hive

Hive is the leading provider of cloud-based AI solutions to understand, search, and generate content, and is trusted by hundreds of the world's largest and mos…

Senior Software Engineer - Backend

Seattle

  • Skills: cloud-based AI solutions, pre-trained AI models, API requests, software applications, core services, web-based APIs, clean code, maintainable code, product development, scalability
  • Level: mid
  • Type: full_time

Palantir

Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empo…

Senior Software Engineer

Seattle

  • Skills: Kubernetes, production infrastructure, cloud hyperscalers, K8s clusters, tooling, CNCF components, scale, stability, security, automation
  • Level: mid
  • Type: full_time

Zoox

Software Engineer - High-Performance Computing

Seattle

  • Skills: software engineer, High-Performance Computing, infrastructure, tools, services, machine learning, distributed system design, algorithmic job scheduling, cloud scaling, computational needs
  • Level: mid
  • Type: full_time

Spice AI

Spice AI is focused on building data-driven AI applications and agents, simplifying the complexity of development by combining code, data, and AI into decision…

Software Engineer

Seattle

  • Skills: AI applications, data-driven, machine learning, SQL interface, cloud platform, high-performance, feedback loops, Rust, decision-making systems, software development
  • Level: mid
  • Type: full_time

Moloco

Moloco is a machine learning company empowering organizations of all sizes to grow and unlock the full value of their unique first-party data, elevating the tr…

Software Engineer

Seattle

  • Skills: machine learning, backend development, infrastructure, cloud platform, AWS, GCP, Go, big data, distributed systems, data processing
  • Level: mid
  • Type: full_time

Axon

At Axon, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and clou…

Staff Backend Software Engineer

Seattle

  • Skills: backend software engineering, collaboration, system design, technical direction, mentoring, cloud systems, high availability, scalability, database experience, open source technologies
  • Level: senior
  • Type: full_time

Spice AI

Spice AI is focused on building data-driven AI applications and agents, making it easier for developers to combine code, data, and AI. They created the Spice.a…

Principal Rust Software Engineer

Seattle

  • Skills: Rust, database development, AI applications, open source, distributed systems, machine learning, high-performance, SQL, feedback loops, data-driven
  • Level: mid
  • Type: full_time

Union.ai

At Union, we are solving one of the hardest challenges in AI infrastructure today: enabling high-velocity iteration while maintaining seamless production-readi…

Senior Software Engineer

Bellevue

  • Skills: AI, ML, Kubernetes, Cloud providers, Backend development, Infrastructure, APIs, Distribution solutions, DevOps, CI/CD
  • Level: mid
  • Type: full_time

Outreach

Outreach is an AI Sales Execution Platform that helps revenue teams accelerate decision making and improve efficiency across the customer journey.

Software Engineer - Database & Queue Infrastructure

Seattle

  • Skills: databases, queues, MySQL, PostgreSQL, DynamoDB, Redis, Kafka, RabbitMQ, automation, scaling
  • Level: mid
  • Type: full_time

SpaceX

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today Spa…

SR. FULL STACK SOFTWARE ENGINEER, CONSTELLATION TOOLS (STARLINK)

Redmond

  • Skills: full-stack software engineering, JavaScript, Python, C#, .NET, data pipelines, Angular, React, PostgreSQL, Docker
  • Level: mid
  • Type: full_time

Palantir Technologies

Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empo…

Senior Software Engineer, Network Infrastructure

Seattle

  • Skills: Kubernetes, network infrastructure, APIs, cloud networking, observability, scalability, security, firewall rules, CNCF tools, Go
  • Level: mid
  • Type: full_time

SingleStore

SingleStore delivers the cloud-native database with the speed and scale to power the world’s data-intensive applications. With a distributed SQL database that …

Software Engineer, Database Engine (University Graduate)

Seattle

  • Skills: real-time technology, LLM, vector index, SQL queries, SIMD, LLVM codeGen, query optimizer, fault tolerance, collaborative teams, cloud-native database
  • Level: mid
  • Type: full_time

Niantic

Niantic's mission is to use emerging technology to enrich our experiences as human beings in the physical world. We build products that inspire movement, explo…

Software Engineer - Server

Bellevue

  • Skills: Java, Go, C++, Python, SQL, networked systems, distributed systems, ETL pipelines, Kubernetes, AWS
  • Level: mid
  • Type: full_time

Axon

At Axon, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and clou…

Senior Software Engineer I

Seattle

  • Skills: cloud services, open source technologies, system design, architecture decision, software development, scalable systems, Java, Scala, Golang, SQL
  • Level: senior
  • Type: full_time

Google

Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one …

Senior Staff Software Engineer, Infrastructure, Google Cloud Compute

Seattle

  • Skills: cloud computing, distributed systems, infrastructure, software development, technical leadership, data structures, algorithm design, networking, system design, AI/ML
  • Level: mid
  • Type: full_time

Truveta

Truveta is the world’s first health provider led data platform with a vision of Saving Lives with Data. Our mission is to enable researchers to find cures fast…

Senior Software Engineer - Backend

Seattle

  • Skills: cloud-native, big data, distributed systems, data pipelines, APIs, Java, Python, C#, AWS, Kubernetes
  • Level: mid
  • Type: full_time

Palantir

Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empo…

Software Engineer Intern

Seattle

  • Skills: software engineering, data-driven decisions, Palantir Gotham, Palantir Foundry, code quality, collaboration, open-source technologies, Java, Go, Typescript
  • Level: mid
  • Type: internship

The Trade Desk

The Trade Desk is a global technology company with a mission to create a better, more open internet for everyone through principled, intelligent advertising.

Senior Software Engineer - AI

Bellevue

  • Skills: AI-powered systems, large language models, Retrieval-Augmented Generation, LangChain, LlamaIndex, Semantic Kernel, CI/CD pipelines, data ingestion, ETL pipelines, conversational agents
  • Level: senior
  • Type: full_time

Bungie

Bungie is a video game developer known for creating iconic titles and game services. The company is committed to crafting meaningful experiences in the gaming …

Game Services Engineering Architect

Bellevue

  • Skills: game services, C++, C#, high-performance service development, multi-tier architecture, SQL, No-SQL, data streaming, game engines, games as a service
  • Level: mid
  • Type: full_time